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Which of the following statements about index is true? It is a data structure

Computer Studies
WAEC 2024

Which of the following statements about index is true? It is a data structure

  • A. that reduces the speed of data retrieval operations on a database table.
  • B. used to quickly locate data without searching every row in a table every time a database table is accessed.
  • C. created using only two rows of a database table to uniquely identify each record.
  • D. that allows relational database to split and store data in different tables, while linking disparate items.
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Correct Answer: Option B
Explanation

An index data structure can be used to quickly locate data without searching every row in a table every time a database table is accessed.

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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts